Demountable rim for wheels



May 29, 1923.

W. L. BRANSTOOL Y DEMOUNTABLE RIM FOR WHEELS Filed Nov. 13 1922 .Mfr-rf" l vll/ll l l Patented May 29, i923.

unirV terni DEMOUNTABLE RII/LEUR WHEELS.

. l Application :filed November 13, 1922. Serial No. 600,508.`

To all whom z' may concern.'

Be it known that I, WILLIAM L. BRAN- s'roor., a citizen of the United States,'resid ing at Chicago,vin the county of Cook and State of Illinois, have invented certain new and useful Improvements in Demountable Rims for Wheels, of which the following is a specication. .Y .j

= This invention has to do with certain improvements in demountable rims for Wheels, and has particularly reference to improvements lin demountable rims for the pneu-` matic tires of motor `vehicle wheels. The demountable riin herein disclosed isso con-l structed that itcan be readily set upon or removed from the wheel felloe, and when set thereon can be very firmly locked in position. It is furthermore, so constructed that when removed from the Wheel felloeit isy fully self contained and of sufficient strength and rigidity to xproperlycarry the tire when inflated. l y The main object of the `invention is rto provide aV demountable rim which is soy-constructed that it can be easily taken apart` in order lto either insert orremove the tire. In this connection, a further object is to construct the rim of two parts which telescope togethenrjandv which when telescoped provide the Aside flanges againstwhich the bases ofthe -tire abut. Y Y

, A yfurther .object ,fin connection With ythe foregoingeis to provide an improved means fordocking the two sections of the rim together, said means comprising a series of hooks which operate between the two rim sections andl serve to hookthem together andeffectively prevent disengagement when the tire is inflated. vIn connection with the foregoing, a further object is tovso form and arrange these hooked members thatv when the rim isset in place on the felloe, .it is impossible for the hooks tol turn and thus become disengaged.v V 4 lOther objects of the invention relate to the provision of avery simple andr strong mechanicalconstruction of the parts, and one which can be cheaply and readily manufactured in quantities.l 4 A Other objects and'uses of the invention will appear from a detailed" description of thesame which consistsl in the features of construction and' combinationsof parts hereinafter. described andolaimed. u.

Referring to the drawing: l Y Figure 1 shows a side elevation ofa wheel having a demountable rimy embodying the present vinvention applied thereto; Fig. 2 isa `detailed cross section on enlarged'scale and is taken at theposition of one of the hooks; and 4 Fig. 3 isa fragmentary longitudinal section taken onthe line 3 3v4 of Fig. 2, lookf ing in the direction ofthe arrows. f Referring rstto Figure 1, the demountable rim in its entirety 4is designated by the f numeral Itis shown as being set onto thev wheel felloe -5, 4which' in the construction illustrated, is conveniently shown as being a wooden-wheel. The tire is designated bythe numeral 6,l and is shown as being of the Grant typewith the straightsides 7 and 8. l

It will presently appear, however, that the features kof the present. invention are not limited to use fin connection with straight side tires. j .r

AThe Wheel felloe is shown asbeing provided .with an'y encircling slieath9 `which has the sidefiangel() Whichserves as an abutf ment `for. the demountableA riin Yand the furf ther side ange 11 which seats against the-vl n n y side of `the Wheel felloer.

The demountable rim. includes .the sec-` tions 12 and 13. The section 12 is of circular form and is slightly larger in size than the Wheel, so that lwheny setv in place thereon ityclears thewheel bya sufficient clearance to accommodate the locking hooks presently y to .be described. The section 12,; is provided. with the. outstanding flangelt which receives pressure ofthe tire'base 7. Y .,Tlielother rim section 13 is adapted k to telescopewith respect tothe rim section 12, and for this `purpose thesection 12 has its under-,face recessed or cut back as shown at 15, and'thegsection 13 isy of proper size and thickness to seatwinto this recessed portion l5.

The section l13 is provided with anv'outi' standing flangel which receives the pressure'y of rthe tire vbase `8. The section 413 -is also provided with an inwardlyprojecting I flange 17 mwhich is adapted to seat against i which the oppositeside of the wheel felloe receives the sheath flange 11.A

The flange 17 of the demountable rimmay be 'either continuous as illustrated kparticularly ein Fig.-l 1, or may comp'risega; series n i of relatively short disconnected lugs Which are adapted to seat against the face of the felloe. The construction is optional as far as this feature is concerned.

l On the bottom face of the rim section 12 1s a series of hooks 18. These hooks are relatively thin andare of such size that they readily enter the space between the sheath 9 and the demountable rim. Each hook is pivoted to the rim section 12 on a pivot point 19. Each hook reaches over beneath the other rim section 17 and its hooked portion 20 is adapted to engage a pin or lug 21 on the other rimv section 10 to lock the two rim sections together. It desired, the hook portions 2Ov may be slightly undercut as shown in F ig. 3, so that When the tire is inflated, the side thrusts Will tend to hold the hooks in the locked positioned.

The pivotal points 19 and the pins or lugs 21 may be established in any convenient manner. In the arrangement illustrated these are established by stamping inwardly, or semi pertorating, the metal of the rim sections, so that riveting operations are largely avoided. After lthe hooks have been set in place on the pivotal points 19 as thus establ'ished, said pivotal points can be upset as shown at 22 in Fig. 2, and thus retain the hooks in place. The amount ofthis upset ting should be such that the demountable -iin can be readily set in place on the fellVhen" the deinountable rini is set into place on the elloe, it is large-ly supported and positioned by means of the hooks or the upset portions 22; but it is also positioned by the engagement of the edge of the section 12 with the flange 10. The otheryside o the rim is provided on its inner face With a slight protuberance 23 which engages the edge of the sheath 9, vso that when t-he demountable rim is drawn firmly into position, this side is also lcorrectly positioned and supported.

The demountable rim is held in place in any convenient manner, as for example by the use of a series of through bolts v241 which reach through the felloe and through the flanges 11 at one side, and through the iiange 17 or lugs at the other side. The parts are so proportioned that when these bolts are drawn up solid, the rim is firmly and accurately positioned and supported at both sides.

Each ot the hooks 1S may be provided with a heel or shoe 25 which is so positioned with respect to the pivotal point 19, and so proportioned, that When the rim is drawn homesaid shoe engages the ange 10 in a firm manner," and the hook is thus held against disengagement when the rim is in place on the Wheel.

While I have herein shown and described only a single embodiment of the eature's of the present invention, still I do not limit myself to the same except as I may do so in the claims.

I claim:

1. A demountable rim for the purpose specified comprising in combination a pair of telescoping ring members, one of which is provided with an outstanding fiange for engagement by the tire base, and is also provided on its inner surface with a circumferential recessed portion establishing a. shoul-` der, the other' ring member being adapted to seat into said recessed portion when the two sections are telescoped together, and said member being provided with an outl standing flange adapted to engage the other tire base portion, an inwardly projecting portion on theA last mentioned' ring member adapted to engage the telly band when in place onv the Wheel for the purpose of accurately spacing the demountable rim thereon, and a series of hooks for locking the two ring members together, a pivotal mounting for each hook on the inner surface of the first mentioned ring' member, comprising a'. semi-perforation oi said ring niembei' extending through the hooi; and upset to hold the hook in place, a. lug on the other ring member suitably Aiositioned for engagement by each of said' liooks and comprising a semi-perforation of said ring member,

and a shoe on the base portion of each hook offset With respect to its pivotal point and adapted to engagea part of the telly' band when the rim is set thereon to thus prevent turning of thehook when the rim `isfin place on the Wheel, substantially yas described.

2. A demountable rim vfor the purpose specified comprising in combination ya pair or' telescoping ringv members, Aone of which is provided with an outstanding flange for engagement by the tire base, and is also provided on its inner surfacewith av circumferential recessed portion, theother ring member being adapted to seat into said recessed portion ii'hen the two sections are telescoped together, and said member being provided with an outstanding `fla-nge adapted to en-k gage the other tire base portion, an inwardly projecting portion on the last nientioned ring member adapted to engage the telly band when in place on the Wheel for the purpose of accurately spacing the demountable ring thereon, and a. series of hooks for locking the twowring' members together, a pivotal mounting' for each hoo-k on the inner surface of thel first mentioned ring member, a lug on the other ring meinber suitably positioned for engagement by each of said hooks, and a shoe on the/base portion of each hook oifset Withv respect to its pivotal point and adapted to engagea part' of the. fellybandwhe-n the rim isset thereon to thus prevent turning of the hoek Csi when the rim is in place on the wheel, substantially as described. n

3. A demountable rim for the purpose specified comprising in combination a pair of telescoping ring members one of which is provided with an outstanding flange for engagement by the tire base, and is alsoV ed to engage the other tire base portio-n, an

the purpose of accurately spacing the de-V mountable rim thereon, and a series of hooks for locking the two ring members together, a pivotal mounting for each hook on Lthe` inner surface of the kfirst mentioned ring member, and a lug on the other ring'member suitably positioned for engagement by each of said hooks, substantially as def 25V scribed.

WILLIAM L, BRANs' oon 

